The fields shared by every named, slugged content record whose free-text
columns are stored encrypted: the body/meta blobs, the display name, and the
/slug permalink paired with its plaintext HMAC blind index (slug_index).
Both site pages and news posts build on this.
content: string
id: number
meta_description: string
meta_title: string
name: string
slug: string
slug_index: BlindIndex